BCM4330 Preliminary Data Sheet
Signal Assignments
I/O States
The following notations are used in Table 23:
• I: Input signal
• O: Output signal
• I/O: Input/Output signal
• PU = Pulled up
• PD = Pulled down
• NoPull = Neither pulled up nor pulled down
Table 23: I/O States
Out of Reset; Before (xx_REG_ON-high
Power Downb
(BT_REG_ON and
SW Download
and BT_RST_N = 0)
and VDDIOs are
Present
Low Power State/Sleep (all
power present)
(BT_RST_N high;
WL_REG_ON held low) xx_REG_ON high)
Name
I/O Keepera Active Mode
Power Rail
WL_REG_ON
I
N
I; PD
I; PD
I; PD (of 200K)
I; PD (of 200K)
I; PD (of 200K)
–
(pull down can be disabled)
(pull down can be disabled)
BT_RST_N
I
I
Y
I; NoPull
I; NoPull
I; NoPull
I; NoPull
I; NoPull
BT_VDDO
–
BT_REG_ON
N
I; PD
I; PD
I; PD (of 200K)
I; PD (of 200K)
I; PD (of 200K)
(pull down can be disabled)
(pull down can be disabled)
BT_GPIO
0,1,2,3,4,5
I/O
Y
I/O; PU, PD, NoPull
(programmable)
I/O; PU, PD, NoPull
(programmable)
High-Z, NoPull
I, PD
I, PD
BT_VDDO
BT_UART_CTS
BT_UART_RTS
BT_UART_RXD
BT_UART_TXD
SDIO Data
I
Y
Y
Y
Y
N
N
N
Y
Y
Y
I; NoPull
O; NoPull
I; NoPull
O; NoPull
I/O; PU
I; NoPull
O; NoPull
I; NoPull
O; NoPull
I; PU
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
I; PU
I; PU
I; PU
I; PU
I; PU
I; PU
I; NoPull
I, PD
I, PD
I, PD
I; PU
I; PU
I; PU
I; PU
I; PU
I; PU
I; NoPull
I, PD
I, PD
I, PD
BT_VDDO
BT_VDDO
BT_VDDO
BT_VDDO
WL_VDDIO
WL_VDDIO
WL_VDDIO
BT_VDDO
BT_VDDO
BT_VDDO
O
I
O
I/O
I/O
I
SDIO CMD
I/O; PU
I; PU
SDIO_CLK
I; NoPull
I; NoPullc
I; NoPullc
I; NoPullc
I; NoPull
I; NoPullc
I; NoPullc
I; NoPullc
BT_PCM_CLK
BT_PCM_IN
BT_PCM_OUT
I/O
I/O
I/O
BROADCOM
®
BCM4330 Preliminary Data Sheet
April 28, 2011 • 4330-DS304-RI
Page 115